MalwareBazaar Database

You are currently viewing the MalwareBazaar entry for SHA256 97d31daa731806026e50a454986e0b1df51ec32176d930e9bc1c16efffaec74e. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.

Database Entry



Stealc


Vendor detections: 14


Intelligence 14 IOCs YARA 1 File information Comments 1

SHA256 hash: 97d31daa731806026e50a454986e0b1df51ec32176d930e9bc1c16efffaec74e
SHA3-384 hash: 9fa9536c6543638ea9640536a99167b0569a88a259ce88b14526071333c2ec5a6a393f1d804d8d63e9aaf180a1e07a12
SHA1 hash: 5633d62cd097e5a15b12d98dff9939a418895edc
MD5 hash: 3517d1ac47167fcc3afbdb4a21a9fcb9
humanhash: nineteen-cup-magazine-maine
File name:3517d1ac47167fcc3afbdb4a21a9fcb9
Download: download sample
Signature Stealc
File size:426'497 bytes
First seen:2024-05-05 22:33:31 UTC
Last seen:Never
File type:Executable exe
MIME type:application/x-dosexec
imphash 36564a2dfe3f389d02697b130c51e1fc (1 x Stealc)
ssdeep 6144:xNDSLZK+bH6tSYLDidexnCihNJnrWXy1JFIHbP3ShohW90K:LSLZKK/dCCibRz4PiLaK
TLSH T11E94E001A660F426CED55F704D19E6B42A7EBC618BB4A0CF77B6FB5F1A732D08522312
TrID 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13)
15.9% (.EXE) Win64 Executable (generic) (10523/12/4)
9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2)
7.6% (.EXE) Win16 NE executable (generic) (5038/12/1)
6.8% (.EXE) Win32 Executable (generic) (4504/4/1)
File icon (PE):PE icon
dhash icon 64d29a9891a989d1 (1 x Stealc)
Reporter zbetcheckin
Tags:32 exe Stealc

Intelligence


File Origin
# of uploads :
1
# of downloads :
383
Origin country :
FR FR
Vendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
97d31daa731806026e50a454986e0b1df51ec32176d930e9bc1c16efffaec74e.exe
Verdict:
Malicious activity
Analysis date:
2024-05-05 22:34:13 UTC
Tags:
gcleaner loader stealer stealc

Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Result
Verdict:
Malware
Maliciousness:

Behaviour
Searching for the window
Sending an HTTP GET request to an infection source
Creating a file in the %temp% directory
Сreating synchronization primitives
Creating a process from a recently created file
Creating a window
Searching for synchronization primitives
Creating a file
Launching the default Windows debugger (dwwin.exe)
DNS request
Connecting to a non-recommended domain
Connection attempt
Sending an HTTP POST request
Transferring files using the Background Intelligent Transfer Service (BITS)
Sending a custom TCP request
Connection attempt to an infection source
Verdict:
Suspicious
Threat level:
  5/10
Confidence:
100%
Tags:
fingerprint overlay packed
Result
Threat name:
Mars Stealer, PureLog Stealer, Stealc, V
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
.NET source code contains method to dynamically call methods (often used by packers)
.NET source code contains potential unpacker
Antivirus detection for URL or domain
C2 URLs / IPs found in malware configuration
Checks if the current machine is a virtual machine (disk enumeration)
Detected unpacking (changes PE section rights)
Detected unpacking (overwrites its own PE header)
Found evasive API chain (may stop execution after checking locale)
Found malware configuration
Found many strings related to Crypto-Wallets (likely being stolen)
Machine Learning detection for dropped file
Machine Learning detection for sample
Malicious sample detected (through community Yara rule)
Multi AV Scanner detection for domain / URL
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines)
Queries sensitive service information (via WMI, Win32_LogicalDisk, often done to detect sandboxes)
Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines)
Sample uses string decryption to hide its real strings
Searches for specific processes (likely to inject)
Snort IDS alert for network traffic
Tries to harvest and steal Bitcoin Wallet information
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal ftp login credentials
Tries to steal Crypto Currency Wallets
Tries to steal Mail credentials (via file / registry access)
Yara detected Generic Downloader
Yara detected Mars stealer
Yara detected PureLog Stealer
Yara detected Stealc
Yara detected Vidar stealer
Yara detected zgRAT
Behaviour
Behavior Graph:
behaviorgraph top1 dnsIp2 2 Behavior Graph ID: 1436529 Sample: iMNEl4E1fR.exe Startdate: 06/05/2024 Architecture: WINDOWS Score: 100 39 westus2-2.in.applicationinsights.azure.com 2->39 41 westus2-2.in.ai.privatelink.monitor.azure.com 2->41 43 2 other IPs or domains 2->43 55 Snort IDS alert for network traffic 2->55 57 Multi AV Scanner detection for domain / URL 2->57 59 Found malware configuration 2->59 61 14 other signatures 2->61 8 iMNEl4E1fR.exe 1 3 2->8         started        signatures3 process4 dnsIp5 45 185.172.128.90, 49736, 80 NADYMSS-ASRU Russian Federation 8->45 47 185.172.128.228, 49737, 49739, 80 NADYMSS-ASRU Russian Federation 8->47 49 185.172.128.59, 49738, 80 NADYMSS-ASRU Russian Federation 8->49 27 C:\Users\user\AppData\Local\Temp\u5d0.1.exe, PE32 8->27 dropped 29 C:\Users\user\AppData\Local\Temp\u5d0.0.exe, PE32 8->29 dropped 69 Detected unpacking (changes PE section rights) 8->69 71 Detected unpacking (overwrites its own PE header) 8->71 13 u5d0.0.exe 76 8->13         started        18 u5d0.1.exe 10 8 8->18         started        20 WerFault.exe 21 16 8->20         started        file6 signatures7 process8 dnsIp9 51 185.172.128.150, 49758, 80 NADYMSS-ASRU Russian Federation 13->51 31 C:\Users\user\AppData\...\softokn3[1].dll, PE32 13->31 dropped 33 C:\Users\user\AppData\Local\...\nss3[1].dll, PE32 13->33 dropped 35 C:\Users\user\AppData\...\mozglue[1].dll, PE32 13->35 dropped 37 9 other files (5 malicious) 13->37 dropped 73 Multi AV Scanner detection for dropped file 13->73 75 Detected unpacking (changes PE section rights) 13->75 77 Detected unpacking (overwrites its own PE header) 13->77 81 9 other signatures 13->81 22 WerFault.exe 13->22         started        53 svc.iolo.com 20.157.87.45, 49740, 49754, 80 MICROSOFT-CORP-MSN-AS-BLOCKUS United States 18->53 79 Checks if the current machine is a virtual machine (disk enumeration) 18->79 24 SystemMechanic_5488CB36-BE62-4606-B07B-2EE938868BD1.exe 14 9 18->24         started        file10 signatures11 process12 signatures13 63 Queries sensitive video device information (via WMI, Win32_VideoController, often done to detect virtual machines) 24->63 65 Queries sensitive disk information (via WMI, Win32_DiskDrive, often done to detect virtual machines) 24->65 67 Queries sensitive service information (via WMI, Win32_LogicalDisk, often done to detect sandboxes) 24->67
Threat name:
Win32.Ransomware.StopCrypt
Status:
Malicious
First seen:
2024-05-05 22:34:05 UTC
File Type:
PE (Exe)
Extracted files:
36
AV detection:
18 of 23 (78.26%)
Threat level:
  5/5
Verdict:
malicious
Result
Malware family:
Score:
  10/10
Tags:
family:stealc family:zgrat discovery rat spyware stealer
Behaviour
Checks SCSI registry key(s)
Checks processor information in registry
Suspicious behavior: EnumeratesProcesses
Suspicious use of AdjustPrivilegeToken
Suspicious use of FindShellTrayWindow
Suspicious use of SendNotifyMessage
Suspicious use of WriteProcessMemory
Enumerates physical storage devices
Program crash
Accesses cryptocurrency files/wallets, possible credential harvesting
Checks installed software on the system
Checks computer location settings
Executes dropped EXE
Loads dropped DLL
Reads data files stored by FTP clients
Reads user/profile data of web browsers
Downloads MZ/PE file
Detect ZGRat V1
Stealc
ZGRat
Malware Config
C2 Extraction:
http://185.172.128.150
Unpacked files
SH256 hash:
32dbd2a0ab6ad695c96b141f0193c0e11fa95513c67a98fa078b5fc83ae355ba
MD5 hash:
59deca81671990a5125991fcf4c2e89d
SHA1 hash:
6c25d386802051af07f2ec1b13f49a449bff7ecd
SH256 hash:
97d31daa731806026e50a454986e0b1df51ec32176d930e9bc1c16efffaec74e
MD5 hash:
3517d1ac47167fcc3afbdb4a21a9fcb9
SHA1 hash:
5633d62cd097e5a15b12d98dff9939a418895edc
Please note that we are no longer able to provide a coverage score for Virus Total.

YARA Signatures


MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.

Rule name:DebuggerCheck__API
Reference:https://github.com/naxonez/yaraRules/blob/master/AntiDebugging.yara

File information


The table below shows additional information about this malware sample such as delivery method and external references.

Web download

Stealc

Executable exe 97d31daa731806026e50a454986e0b1df51ec32176d930e9bc1c16efffaec74e

(this sample)

  
Delivery method
Distributed via web download

BLint


The following table provides more information about this file using BLint. BLint is a Binary Linter to check the security properties, and capabilities in executables.

Findings
IDTitleSeverity
CHECK_AUTHENTICODEMissing Authenticodehigh
CHECK_DLL_CHARACTERISTICSMissing dll Security Characteristics (HIGH_ENTROPY_VA)high
CHECK_PIEMissing Position-Independent Executable (PIE) Protectionhigh
Reviews
IDCapabilitiesEvidence
WIN32_PROCESS_APICan Create Process and ThreadsKERNEL32.dll::CloseHandle
WIN_BASE_APIUses Win Base APIKERNEL32.dll::TerminateProcess
KERNEL32.dll::LoadLibraryW
KERNEL32.dll::LoadLibraryA
KERNEL32.dll::GetVolumeInformationW
KERNEL32.dll::GetStartupInfoA
KERNEL32.dll::GetCommandLineA
WIN_BASE_EXEC_APICan Execute other programsKERNEL32.dll::WriteConsoleA
KERNEL32.dll::WriteConsoleW
KERNEL32.dll::SetConsoleScreenBufferSize
KERNEL32.dll::SetStdHandle
KERNEL32.dll::AssignProcessToJobObject
KERNEL32.dll::GetConsoleAliasesLengthA
KERNEL32.dll::GetConsoleCP
KERNEL32.dll::GetConsoleMode
KERNEL32.dll::GetConsoleOutputCP
WIN_BASE_IO_APICan Create FilesKERNEL32.dll::CreateFileA

Comments



Avatar
zbet commented on 2024-05-05 22:33:32 UTC

url : hxxp://185.172.128.59/ISetup7.exe